Finding the Fourth Proportional to 76,909.95, 115,364.16 and 24,319.44
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Solution
The fourth proportional to 76,909.95, 115,364.16 and 24,319.44 is: 36,478.92
Step by Step Solution
- Step 1: Write the proportion equation
76,909.95 : 115,364.16 = 24,319.44 : x - Step 2: Convert to fraction form
76,909.95/115,364.16 = 24,319.44/x - Step 3: Cross multiply
76,909.95x = 115,364.16 × 24,319.44 - Step 4: Simplify right side
76,909.95x = 2,805,591,767.27 - Step 5: Solve for x
x = 2,805,591,767.27/76,909.95 - Step 6: Final answer
x = 36,478.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.